ACUTE RESPIRATORY INFECTIONS (460-466)

• Excludes: pneumonia and influenza (480.0-487.8)
• 460 Acute nasopharyngitis [common cold]
  • Coryza (acute)
  • Nasal catarrh, acute
  • Nasopharyngitis:
    • NOS
    • acute
    • infective NOS
  • Rhinitis:
    • acute
    • infective
  • Excludes: nasopharyngitis, chronic (472.2)
    • pharyngitis:
      • acute or unspecified (462)
      • chronic (472.1)
    • rhinitis:
      • allergic (477.0-477.9)
      • chronic or unspecified (472.0)
    • sore throat:
      • acute or unspecified (462)
      • chronic (472.1)
• 461 Acute sinusitis
  • Includes: abscess, acute, of sinus (accessory) (nasal)
    • empyema, acute, of sinus (accessory) (nasal)
    • infection, acute, of sinus (accessory) (nasal)
    • inflammation, acute, of sinus (accessory) (nasal)
    • suppuration, acute, of sinus (accessory) (nasal)
  • Excludes: chronic or unspecified sinusitis (473.0-473.9)
  • 461.0 Maxillary
    • Acute antritis
  • 461.1 Frontal
  • 461.2 Ethmoidal
  • 461.3 Sphenoidal
  • 461.8 Other acute sinusitis
    • Acute pansinusitis
  • 461.9 Acute sinusitis, unspecified
    • Acute sinusitis NOS
• 462 Acute pharyngitis
  • Acute sore throat NOS
  • Pharyngitis (acute):
    • NOS
    • gangrenous
    • infective
    • phlegmonous
    • pneumococcal
    • staphylococcal
    • suppurative
    • ulcerative
  • Sore throat (viral) NOS
  • Viral pharyngitis
  • Excludes: abscess:
    • peritonsillar [quinsy] (475)
    • pharyngeal NOS (478.29)
    • retropharyngeal (478.24)
    • chronic pharyngitis (472.1)
    • infectious mononucleosis (075)
    • that specified as (due to):
      • Coxsackie (virus) (074.0)
      • gonococcus (098.6)
      • herpes simplex (054.79)
      • influenza (487.1)
      • septic (034.0)
      • streptococcal (034.0)
• 463 Acute tonsillitis
  • Tonsillitis (acute):
    • NOS
    • follicular
    • gangrenous
    • infective
    • pneumococcal
    • septic
    • staphylococcal
    • suppurative
    • ulcerative
    • viral
  • Excludes: chronic tonsillitis (474.0)
    • hypertrophy of tonsils (474.1)
    • peritonsillar abscess [quinsy] (475)
    • sore throat:
      • acute or NOS (462)
      • septic (034.0)
    • streptococcal tonsillitis (034.0)
• 464 Acute laryngitis and tracheitis
  • Excludes: that associated with influenza (487.1)
    • that due to Streptococcus (034.0)
  • 464.0 Acute laryngitis
    • Laryngitis (acute):
      • NOS
      • edematous
      • Hemophilus influenzae [H. influenzae]
      • pneumococcal
      • septic
      • suppurative
      • ulcerative
    • Excludes: chronic laryngitis (476.0-476.1)
      • influenzal laryngitis (487.1)
  • 464.1 Acute tracheitis
    • Tracheitis (acute):
      • NOS
      • catarrhal
      • viral
    • Excludes: chronic tracheitis (491.8)
    • 464.10 Without mention of obstruction
    • 464.11 With obstruction
  • 464.2 Acute laryngotracheitis
    • Laryngotracheitis (acute)
    • Tracheitis (acute) with laryngitis (acute)
    • Excludes: chronic laryngotracheitis (476.1)
    • 464.20 Without mention of obstruction
    • 464.21 With obstruction
  • 464.3 Acute epiglottitis
    • Viral epiglottitis
    • Excludes: epiglottitis, chronic (476.1)
    • 464.30 Without mention of obstruction
    • 464.31 With obstruction
  • 464.4 Croup
    • Croup syndrome
• 465 Acute upper respiratory infections of multiple or unspecified sites
  • Excludes: upper respiratory infection due to:
    • influenza (487.1)
    • Streptococcus (034.0)
  • 465.0 Acute laryngopharyngitis
  • 465.8 Other multiple sites
    • Multiple URI
  • 465.9 Unspecified site
    • Acute URI NOS
    • Upper respiratory infection (acute)
• 466 Acute bronchitis and bronchiolitis
  • Includes: that with:
    • bronchospasm
    • obstruction
  • 466.0 Acute bronchitis
    • Bronchitis, acute or subacute:
      • fibrinous
      • membranous
      • pneumococcal
      • purulent
      • septic
      • viral
      • with tracheitis
    • Croupous bronchitis
    • Tracheobronchitis, acute
  • 466.1 Acute bronchiolitis
    • Bronchiolitis (acute)
    • Capillary pneumonia